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Paraneoplastic Neurological Syndromes Associated with Ovarian Tumors: A Case Report and Systematic Review

delete2026-08-13
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OA
AI
A
Adrianna Zahorowska *
E
Edyta Śliwak
N
Natalia Lerch
K
Karolina Engel-Eliasz
A
Adriana Szczęch
M
Mariola Krzyścin
P
Piotr Hajdasz
A
Aleksandra Marciniak
A
Agnieszka Brodowska
A
Andrzej Starczewski
I
Iwona Szydłowska *
DOI:10.3390/diagnostics16162549delete
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Abstract

Abstract

En 中文
Paraneoplastic neurological syndromes are rare immune-mediated disorders that may represent the first clinical manifestation of an underlying tumor. This report describes a 58-year-old woman with rapidly progressive cerebellar dysfunction and anti-Yo antibodies in serum and cerebrospinal fluid. Definite PNS was diagnosed according to the PNS-Care Score criteria (score: 10/10). Oncological evaluation revealed FIGO IIIC high-grade serous ovarian carcinoma (HGSOC) with extensive peritoneal dissemination. Despite corticosteroids, cytoreductive surgery, and carboplatin–paclitaxel chemotherapy, neurological disability progressed, although tumor control was achieved. A PRISMA-guided review of PubMed and Scopus identified 33 studies of PNSs associated with ovarian tumors published between 2016 and 2026. Anti-NMDAR encephalitis, mainly associated with ovarian teratomas, generally showed favorable recovery, whereas anti-Yo-associated cerebellar degeneration, predominantly linked to epithelial ovarian malignancies, had poor neurological outcomes. Prompt antibody testing, oncological investigation, and multidisciplinary treatment are essential, although anti-Yo-associated neurological deficits may be irreversible.
Keywords:
paraneoplastic neurological syndromes
paraneoplastic cerebellar degeneration
onconeural antibodies
ovarian tumor

Journal

Diagnostics cover
Diagnostics
IF:
3.3
Papers:
1.9W
Citations:
3.6W

Organization

P
Pomeranian Medical University in Szczecin
Scholars:
282
Papers: 102
Citations: 0
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